1995 / Solid Freeform Fabrication Proceedings
PREV and NEXT link to numerically adjacent references for this YEAR.
CONTENTS links to the title list for this YEAR's references.
Author P. Kamatchi Subramanian (a), J.W. Barlow (b), H.L. Marcus (a), (a) The University of Texas at Austin, (a) University of Connecticut
Source Solid Freeform Fabrication Proceedings, 1995, pp 346-352
Abstract Alumina powders with mean particle size of 15 um, 2 um and 0.5 um were processed by SLS using polymer binders. The 2 um and 0.5 um powders were given a thermal agglomeration treatment before SLS. The green shapes after SLS were infiltrated with a colloid of aluminum oxide. After infiltration the samples were given suitable heat-treatment to remove the polymer binder by thermal decomposition followed by a sintering treatment at 1600 deg C. Green densities were in the range of 45% of theoretical density for the agglomerates of 2 um and 0.5 um powders while it was about 36% of theoretical density for the 15 um powders. Sintered densities were about 55% of theoretical density for the samples from agglomerates of 2 um and 0.5 um powders while it was 42% of theoretical density for the samples from 15 um powders. The strength of samples were measured in the green state and after sintering to determine the effect of particle size. (Auth abstract) [References: 8]
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu